package com.ejlchina.okhttps;

import java.lang.reflect.Field;

import java.lang.reflect.InvocationTargetException;

import java.lang.reflect.Method;

public class Platform {

/**

* Android 的 SDK 版本，若不是 Android 平台，则为 0

*/

public static final int ANDROID_SDK_INT = getAndroidSdkInt();

private static int getAndroidSdkInt() {

try {

Class<?> versionClass = Class.forName("android.os.Build$VERSION");

Field field = versionClass.getDeclaredField("SDK_INT");

return field.getInt(field);

} catch (ClassNotFoundException | NoSuchFieldException | IllegalAccessException e) {

return 0;

}

}

public static void logInfo(String message) {

doLog(okhttp3.internal.platform.Platform.INFO, message, null);

}

public static void logError(String message) {

logError(message, null);

}

public static void logError(String message, Throwable t) {

doLog(okhttp3.internal.platform.Platform.WARN, message, t);

}

private static Method logMethod = null;

private static void doLog(int level, String message, Throwable t) {

okhttp3.internal.platform.Platform platform = okhttp3.internal.platform.Platform.get();

if (isOkHttpVersionLessThan4()) {

platform.log(level, message, t);

return;

}

try {

synchronized (Platform.class) {

if (logMethod == null) {

logMethod = platform.getClass().getMethod("log", String.class, int.class, Throwable.class);

}

}

logMethod.invoke(platform, message, level, t);

} catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {

e.printStackTrace();

}

}

private static String okHttpVersion;

private static boolean isOkHttpVersionLessThan4() {

if (okHttpVersion == null) {

try {

Class<?> versionClass = Class.forName("okhttp3.internal.Version");

Method method = versionClass.getDeclaredMethod("userAgent");

okHttpVersion = (String) method.invoke(null);

} catch (Exception e) {

okHttpVersion = "4.x";

}

}

return !okHttpVersion.startsWith("4");

}

}